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UpdateImage Method

Summary

Update the image of an item.

Syntax
C#
C++
public void UpdateImage( 
   ImageViewerItem item, 
   RasterImage image, 
   int pageNumber 
) 
vb[VB Syntax] 
Public Sub UpdateImage( 
   ByVal _item_ As ImageViewerItem, 
   ByVal _image_ As RasterImage, 
   ByVal _pageNumber_ As Integer 
) 
public:  
   void UpdateImage( 
      ImageViewerItem^ item, 
      RasterImage^ image, 
      int pageNumber 
   ) 

Parameters

item

Item to update

image

New image. If this is null, then the item will be empty after this method returns.

pageNumber

1-based page number of image. Pass 1 if image contains a single page (frame).

Remarks

This method lets you quickly update the ImageViewerItem.Image value. It is the equivalent of the following code:

ImageViewerItem item = imageViewer.Items[some index]; 
item.Image = image; 
Example
C#
using Leadtools; 
using Leadtools.Controls; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Svg; 
 
RasterImage image = RasterImage.Create(200, 200, 24, 96, RasterColor.White); 
_imageViewer.Items.UpdateImage(_imageViewer.ActiveItem, image, 1); 
Requirements

Target Platforms

Help Version 22.0.2022.4.4
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Leadtools.Controls Assembly

Products | Support | Contact Us | Intellectual Property Notices
© 1991-2022 LEAD Technologies, Inc. All Rights Reserved.